The common fate of ice and fish. Linkages between polar cod, sea ice properties and under-ice communities in the Arctic Ocean
The Arctic Ocean faces a complete loss of the summer sea ice cover in the coming decades. Sea ice is an important habitat for microalgae ('ice algae') and a diverse ice-associated community. Hence, the rapid deterioration of sea ice habitats will cause major repercussions on the structure...
Main Authors: | , , , , , , , , , , , |
---|---|
Format: | Conference Object |
Language: | unknown |
Published: |
2015
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/39394/ https://epic.awi.de/id/eprint/39394/1/Flores_EMBS_22sep2015.pdf https://hdl.handle.net/10013/epic.46560 https://hdl.handle.net/10013/epic.46560.d001 |
id |
ftawi:oai:epic.awi.de:39394 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:39394 2023-05-15T14:28:04+02:00 The common fate of ice and fish. Linkages between polar cod, sea ice properties and under-ice communities in the Arctic Ocean Flores, Hauke David, Carmen Lange, Benjamin Kohlbach, Doreen Graeve, Martin Peeken, Ilka Nicolaus, Marcel Rabe, Benjamin Krumpen, Thomas Schaafsma, Fokje van Franeker, Jan Andries Brandt, Angelika 2015-09 application/pdf https://epic.awi.de/id/eprint/39394/ https://epic.awi.de/id/eprint/39394/1/Flores_EMBS_22sep2015.pdf https://hdl.handle.net/10013/epic.46560 https://hdl.handle.net/10013/epic.46560.d001 unknown https://epic.awi.de/id/eprint/39394/1/Flores_EMBS_22sep2015.pdf https://hdl.handle.net/10013/epic.46560.d001 Flores, H. orcid:0000-0003-1617-5449 , David, C. , Lange, B. , Kohlbach, D. , Graeve, M. orcid:0000-0002-2294-1915 , Peeken, I. orcid:0000-0003-1531-1664 , Nicolaus, M. orcid:0000-0003-0903-1746 , Rabe, B. orcid:0000-0001-5794-9856 , Krumpen, T. orcid:0000-0001-6234-8756 , Schaafsma, F. , van Franeker, J. A. and Brandt, A. (2015) The common fate of ice and fish. Linkages between polar cod, sea ice properties and under-ice communities in the Arctic Ocean , European Marine Biology Symposium, Helgoland, 20 September 2015 - 24 September 2015 . hdl:10013/epic.46560 EPIC3European Marine Biology Symposium, Helgoland, 2015-09-20-2015-09-24 Conference notRev 2015 ftawi 2021-12-24T15:40:59Z The Arctic Ocean faces a complete loss of the summer sea ice cover in the coming decades. Sea ice is an important habitat for microalgae ('ice algae') and a diverse ice-associated community. Hence, the rapid deterioration of sea ice habitats will cause major repercussions on the structure and functioning of Arctic ecosystems. How sea ice habitat structure shapes the ice-associated community, however, is barely understood. Using an under-ice trawl equipped with a bio-environmental sensor array throughout the Eurasian Basin, we investigated (1) the relationship between sea ice properties, and under-ice community structure; (2) the under-ice distribution of polar cod Boreogadus saida, an important carbon source for Arctic endotherms, and (3) the significance of ice algal carbon for a number of key species from the under-ice habitat. According to sea ice structure and other parameters, the environment was separated in two distinct regimes, which was resembled in the under-ice community structure. Polar cod were ubiquitous throughout the Eurasian Basin. Higher fish abundance was associated with thicker ice, higher ice coverage and lower surface salinity. Back-tracking of the ice floes hosting polar cod indicated potential areas of under-ice recruitment on the Siberian shelf. First results from fatty acid and stable isotope analysis indicate a significant contribution of ice algal carbon to the carbon budget of the food web at multiple trophic levels. This, in combination with the observed response in community composition to different environmental regimes indicates potential long-term alterations in Arctic marine ecosystems as the Arctic Ocean continues to change. Additionally, the omnipresence of polar cod in the Eurasian Basin indicates that the central Arctic under-ice habitats may constitute a potential vector of genetic exchange and a recruitment source for coastal populations around the Arctic Ocean. Conference Object Arctic Arctic Arctic Ocean Boreogadus saida ice algae polar cod Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The Arctic Ocean faces a complete loss of the summer sea ice cover in the coming decades. Sea ice is an important habitat for microalgae ('ice algae') and a diverse ice-associated community. Hence, the rapid deterioration of sea ice habitats will cause major repercussions on the structure and functioning of Arctic ecosystems. How sea ice habitat structure shapes the ice-associated community, however, is barely understood. Using an under-ice trawl equipped with a bio-environmental sensor array throughout the Eurasian Basin, we investigated (1) the relationship between sea ice properties, and under-ice community structure; (2) the under-ice distribution of polar cod Boreogadus saida, an important carbon source for Arctic endotherms, and (3) the significance of ice algal carbon for a number of key species from the under-ice habitat. According to sea ice structure and other parameters, the environment was separated in two distinct regimes, which was resembled in the under-ice community structure. Polar cod were ubiquitous throughout the Eurasian Basin. Higher fish abundance was associated with thicker ice, higher ice coverage and lower surface salinity. Back-tracking of the ice floes hosting polar cod indicated potential areas of under-ice recruitment on the Siberian shelf. First results from fatty acid and stable isotope analysis indicate a significant contribution of ice algal carbon to the carbon budget of the food web at multiple trophic levels. This, in combination with the observed response in community composition to different environmental regimes indicates potential long-term alterations in Arctic marine ecosystems as the Arctic Ocean continues to change. Additionally, the omnipresence of polar cod in the Eurasian Basin indicates that the central Arctic under-ice habitats may constitute a potential vector of genetic exchange and a recruitment source for coastal populations around the Arctic Ocean. |
format |
Conference Object |
author |
Flores, Hauke David, Carmen Lange, Benjamin Kohlbach, Doreen Graeve, Martin Peeken, Ilka Nicolaus, Marcel Rabe, Benjamin Krumpen, Thomas Schaafsma, Fokje van Franeker, Jan Andries Brandt, Angelika |
spellingShingle |
Flores, Hauke David, Carmen Lange, Benjamin Kohlbach, Doreen Graeve, Martin Peeken, Ilka Nicolaus, Marcel Rabe, Benjamin Krumpen, Thomas Schaafsma, Fokje van Franeker, Jan Andries Brandt, Angelika The common fate of ice and fish. Linkages between polar cod, sea ice properties and under-ice communities in the Arctic Ocean |
author_facet |
Flores, Hauke David, Carmen Lange, Benjamin Kohlbach, Doreen Graeve, Martin Peeken, Ilka Nicolaus, Marcel Rabe, Benjamin Krumpen, Thomas Schaafsma, Fokje van Franeker, Jan Andries Brandt, Angelika |
author_sort |
Flores, Hauke |
title |
The common fate of ice and fish. Linkages between polar cod, sea ice properties and under-ice communities in the Arctic Ocean |
title_short |
The common fate of ice and fish. Linkages between polar cod, sea ice properties and under-ice communities in the Arctic Ocean |
title_full |
The common fate of ice and fish. Linkages between polar cod, sea ice properties and under-ice communities in the Arctic Ocean |
title_fullStr |
The common fate of ice and fish. Linkages between polar cod, sea ice properties and under-ice communities in the Arctic Ocean |
title_full_unstemmed |
The common fate of ice and fish. Linkages between polar cod, sea ice properties and under-ice communities in the Arctic Ocean |
title_sort |
common fate of ice and fish. linkages between polar cod, sea ice properties and under-ice communities in the arctic ocean |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/39394/ https://epic.awi.de/id/eprint/39394/1/Flores_EMBS_22sep2015.pdf https://hdl.handle.net/10013/epic.46560 https://hdl.handle.net/10013/epic.46560.d001 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Boreogadus saida ice algae polar cod Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Boreogadus saida ice algae polar cod Sea ice |
op_source |
EPIC3European Marine Biology Symposium, Helgoland, 2015-09-20-2015-09-24 |
op_relation |
https://epic.awi.de/id/eprint/39394/1/Flores_EMBS_22sep2015.pdf https://hdl.handle.net/10013/epic.46560.d001 Flores, H. orcid:0000-0003-1617-5449 , David, C. , Lange, B. , Kohlbach, D. , Graeve, M. orcid:0000-0002-2294-1915 , Peeken, I. orcid:0000-0003-1531-1664 , Nicolaus, M. orcid:0000-0003-0903-1746 , Rabe, B. orcid:0000-0001-5794-9856 , Krumpen, T. orcid:0000-0001-6234-8756 , Schaafsma, F. , van Franeker, J. A. and Brandt, A. (2015) The common fate of ice and fish. Linkages between polar cod, sea ice properties and under-ice communities in the Arctic Ocean , European Marine Biology Symposium, Helgoland, 20 September 2015 - 24 September 2015 . hdl:10013/epic.46560 |
_version_ |
1766302197333622784 |